A good laminate underlay

Thanks for all the help so far and I certainly apologize for the newbie questions one after another.

I removed the old carpet in one of the rooms yesterday, and I also removed the tack strips along the walls (using the Super Wonder Bar), some 'relatively' significant amount of concrete came off along way (pictured). Will the holes become a problem for laminate flooring? Should I fill the holes with some sort of filler?

I plan to get the Kronotex Dynamic range (8mm) laminate, what would be a better underlay (mainly sound proofing) for it? My local store carries the Roberts Harmony (pictured), is it among the better ones?

Thanks in advance.

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A good laminate underlay

Quote:

Originally Posted by peter1

I removed the old carpet in one of the rooms yesterday, and I also removed the tack strips along the walls (using the Super Wonder Bar), some 'relatively' significant amount of concrete came off along way (pictured). Will the holes become a problem for laminate flooring? Should I fill the holes with some sort of filler?.

Don't worry about those small holes, they are too small to affect anything...

Quote:

Originally Posted by peter1

I plan to get the Kronotex Dynamic range (8mm) laminate, what would be a better underlay (mainly sound proofing) for it? My local store carries the Roberts Harmony (pictured), is it among the better ones?
Thanks in advance.

Thanks for the link. I seem to remember seeing something similar (the non-lip version) some time ago, or it may be QuietWalk or another brand. I didn't pay too much attention at the time because I thought underlay is generic (i.e. non-branded).

If I remembered correctly, the fiber pad (SolidWalk/QuietWalk look-alike) costs twice as much as the Harmony. Interestingly, the Harmony is actually similar or better in terms of IIC/STC rating (possibly in biased control environment):

In Europe, where floating floors have a much longer history, a similar product to Quiet Walk was common some 20 years ago. Today you will not find any in use. It was found that after 10-15 years, when the floors were taken up, the material had disintegrated to the point that only dust remained.

It's pretty bold to imply a competing product will disintegrate into dust over time.